Home / 2,638,946,454.40-3,956,500,452.72-1,239,209,455.52

Finding the Fourth Proportional to 2,638,946,454.40, 3,956,500,452.72 and 1,239,209,455.52

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Solution

The fourth proportional to 2,638,946,454.40, 3,956,500,452.72 and 1,239,209,455.52 is: 1,857,912,942.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638,946,454.40 : 3,956,500,452.72 = 1,239,209,455.52 : x
  2. Step 2: Convert to fraction form
    2,638,946,454.40/3,956,500,452.72 = 1,239,209,455.52/x
  3. Step 3: Cross multiply
    2,638,946,454.40x = 3,956,500,452.72 × 1,239,209,455.52
  4. Step 4: Simplify right side
    2,638,946,454.40x = 4,902,932,771,779,784,704
  5. Step 5: Solve for x
    x = 4,902,932,771,779,784,704/2,638,946,454.40
  6. Step 6: Final answer
    x = 1,857,912,942.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.